Keystones — Lintel
Five GCSE retrieval questions · 21 May 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0064
Answer: 6.4 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 6
Answer: (x + 6)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 14cm, angle = 50°. Find opposite
Answer: 16.7cm -
4. Ratio Mixed ratio problems
£222.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £148.00 -
5. Statistics Mean
Calculate the mean of: 8, 5, 35, 23, 44, 17, 42, 42
Answer: 27